Magazine for razor blades



ATTORNEY INVENTOR L 0POL 0 KUHNL L. KUHNL MAGAZINE FOR RAZOR BLADES Sept.,17, 1940.

Filed March 24, 1939 Patented Sept. 17, 1940 UNITED STATES 2,215,008 MAGAZINE Foit RAZOR Leopold Kuhn], Bridgeportr'Conni, assignor to Magazine Repeating Razor Company, New York, N. Y., a corporation otlfilgw Jersey Application March 24, l939, SerialNo. 263,833

3 Claims.

The invention relates to an improved razor blade magazine of the type provided with means for ejecting blades therefrom one by one and as they are ejected feeding them to shaving position in a razor head. The general nature and purposes of the device will be understood after examining the blade magazines illustrated and described in U. S. Patent #1,969,945 to O. .V. Rod- "rigues, U. s. Patent #2,043,046 to Leopold Kuhn],

and U. S. Patent #2,109,017 to O. V. Rodrigues, and generally described they comprise a casing, a. receptacle within the casing in which a stack of blades is retained,.a reciprocable plunger for successively ejecting the blades from the stack, and

16 means for aligning the magazine with the razor head so that each blade, as it is ejected from the magazine, will be properly directed to shaving position in the razor head.

In blade magazines of this general character,

it has been frequently found that, as the plunger is retracted, it exerts suflicient frictional effect on the topmost blade of the stack to drag the blade back with it, with the result that the plunger cannot be made to engage the blade for injecting it into the razor head. This is due to the fact that clearance is provided between the end wall of the receptacle and the upper wall of the casing in order to permit the blade-engaging plunger to pass to the rear of the stack of blades preparatory to engagement with the topmost blade of the stack for ejectingit. This clearance may be sufllcient to permit not only the plunger but also a blade to pass through it at the same time; although, as a practical matter, the clearance is preferably considerably less than the thickness of the plunger plus a blade. However, if on retraction of the plunger a blade is dragged into the clearance, the plunger becomes jammed and cannot pick up a blade on its forward stroke.

It is the object of the invention to prevent frictional engagement of the plunger from dragging the topmost blade of the stack back through the clearance referred to.

' Referring to the drawing:

Fig. 1 is a perspective view of a razor blade magazine embodying the invention;

Fig. 2 is a view on the line 2-2 of Fig. 1; Fig. 3 is a view similar to Fig. 4 but showing the plunger in fully retracted position ready to eject I 5 a blade from the magazine;

Fig. 4 is a view on the line 4-401 Fig. 3; Fig. 5 is a perspective view of a blade receptacle. Referring to the drawing more in detail, the casing (see Fig. 1) comprises a sheet metal struc- 5 ture consisting of the side walls Ill and II, the

end wall i2, the. bottom flanges l3 ani4,-a7ndthe top wall IS, the top wall l5 being provided with the slot l6 running nearly its entire lengthserving as a guide for the blade ejecting unit as will presently be described. 5 The stack of blades indicated as a whole by the letter A is contained in a receptacle comprising an open top, box-like structure having the rear end wall I! and the front end wall l8, the bottom wall l9, and the flanges 20, 2!, 22, 23, 10 and 24 for confining the stack. The projection 26 on the end wall I8 extends into an aperture 21 in the front end wall I: of the casing and therefore positions the end wall l8 of the receptacle so that its top edge is flush with the top edge 1 of the end wall l2 of the casing.

The rear end wall I! of the blade-holding receptacle extends upwardly toward the top wall I5 of the casing but not so far but that clearance is provided in the form of a slot, as is-best shown 20 in Fig. 4 between its upper edge and the top wall l5 of the casing, the amount of this clearance being suflicient to permit the plunger to pass therethrough as will be presently explained. The blade stack is resiliently pressed upwardly by a spring 25 28 afilxed by riveting or otherwise to the bottom wall I9 of the receptacle as shown in Figs. 2 and 3. This causes the blade which may occupy the to most positiorromthestack to be pressed u'pwar 1y to the point where-it bears against the top wall 30 [5 of the casing or against the plunger, depending upon the position of the latter in the guide slot I6 or against the plunger and top wall together.

In Fig.2the forward end of the blade is shown as bearing against the plunger, while the rear end 35 is shown as bearing against the top wall ii of the casing. In Fig. 3 the blade a bears against the top wall of the casing throughout its entire length, for the reason that the plunger in Fig. 3 is completely retracted so that its blade engaging end is 40 to the rear of the topmost blade (0 and in alignment with it. v

The blade holding receptacle is prevented from sliding out of the casing by the lugs 30 and 3| struck from the material of the side walls of the 5 casing.

The means which I provide for preventing the topmost blade of the stack from being drawn back through the clearance between the blade receptacle and the top wall of the casing cornprises the tongue 32 struck down from the top wall of the casing sufliciently so that'it bears against the top edge of the rear end wall of the receptacle but only through a portion of the length of the latter, leaving a part oi! the clearance free. It will be apparent that, with the tongue in this position, no blade from the stack can, under any circumstances, pass through the clearance referred to, since the blades are wider than the length of the unobstructed portion of the clearance.

The blade ejecting unit comprises the plunger 88 and the thumb-and-finger piece 84 connected together by the tongue 85 struck from the material of the plunger and extending through an aperture in the thumb-and-finger piece and bent over' as shown at 8B. The connection however is loose so that the unit may slide freely back and forth the whole length of the slot l8. The plunger, it will be observed, is so located with respect to the thumb-and-finger piece and is sufficiently narrowthat it passes freely through the clearance above referred to without obstruction by the tongue 82. On the other hand, the blades are assumed to be wide enough so that passage of the topmost one through this clearance is obstructed by this tongue.

While not related to the invention, the device usually includes (for use in certain types of razors) an aligning finger 88. However, since the scope of the invention is confined to the mechanism for ejecting blades from a magazine,

it is immaterial in its broadest aspect whether or not this finger be included.

While I have described a certain particular construction in which my invention is incorporated, I do not desire to be limited to this particular embodiment since many changes and modifications may easily be made without deand a wall of the casing of dimensions sumclent for a blade to pass therethrough, a plunger reciprocably mounted within the casing for travel in a path passing through said slot, the width of the plunger being less than the length of the slot, and a tongue inwardly projecting from a wall of said casing and positioned to obstruct the passage of a blade through said slot but offset from the path of movement of the plunger therethrough.

2. In a magazine injector for razor blades, of the type comprising a boxlike casing provided with a blade ejection orifice in one end together with a receptacle within the casing for containing a stack of blades having an end wall of a height to provide a slot between its free edge and a wall of the casing of dimensions sufficient for a blade to pass therethrough, a plunger reciprocably mounted within the casing for travel in a path passing through said slot, the width of the plunger being less than the length of the slot, and a projection inwardly projecting from a wallet said casing and positioned to obstruct passage of a blade through said slot but oifset from the path of movement of the plunger therethrough.

- 3. In a magazine injector for razor blades, of the type comprising a boxlike casing provided with ablade ejection orifice in one end together with a receptacle within the casing for containing a stack of blades and having an end wall of a height to provide slot between its free edge jection projecting from the top wall of the casing toward the said free edge and positioned to the rear of a blade but ofiset from the path of movement of the plunger therethrough.

LEOPOLD KUHNL. 

